Every organisation has two lives. One is on paper: the chart, the rules and the job descriptions. The other is in people: who actually talks to whom, what is considered normal, and how things really get done. The first is the formal organisation. The second is the informal organisation, and the pattern of shared habits and beliefs that sits behind both is the organisation’s culture.
The Institute of Chartered Accountants of Nigeria (ICAN) syllabus asks you to explain formal and informal organisation, the roles and importance of organisational culture, and the part that individual and group behaviour play. Managers who understand these can predict how people will react to a change and can lead them better.
In 30 seconds
A formal organisation is planned by management, with clear roles, rules and a chain of command. An informal organisation grows by itself from friendships and shared interests. Both matter: the first gives accountability and order, the second gives morale and innovation. Organisational culture is the shared values, beliefs and habits that shape how people behave at work. Individual behaviour depends on personality, values, attitudes, motivation, perception, emotions and social influences.
Group behaviour depends on norms, roles, leadership, communication and cohesion.
Formal and informal organisation
A formal organisation binds its members with set rules and regulations. Management sets objectives and purposes, and the framework defines clear roles, responsibilities and levels of authority. It brings order, accountability and the systematic pursuit of objectives. Every employee knows where to be and what to do, and the organisation depends on following policy and procedure.
An informal organisation grows up inside the formal structure. It comes from personal relationships, shared interests and social contact, and management does not order it into being. It works spontaneously and affects the mood of the workplace, helping morale, motivation, communication and innovation.
| Basis | Formal organisation | Informal organisation |
|---|---|---|
| Origin | Planned and set up by management | Forms naturally from relationships |
| Purpose | To reach the organisation’s goals | To meet people’s social and emotional needs |
| Hierarchy | Clear and well defined | None |
| Communication | Through formal channels such as reports and email | Through casual conversation |
| Rules | Strict rules and procedures | No fixed rules |
| Accountability | To superiors | No official accountability |
| Flexibility | Rigid and less adaptable | Very flexible |
| Decisions | Taken by management | Emerge from group agreement |
| Life span | As long as the organisation exists | May fade as relationships change |
| Examples | Corporate hierarchies, schools, government offices | Lunch groups, friendships, informal meetings |
| Advantages of a formal organisation | Advantages of an informal organisation |
|---|---|
| People know their jobs, so coordination is easy | Teamwork and candour in an unstructured setting |
| Clear accountability for tasks and performance | Better morale and a sense of belonging |
| Consistency from standard procedures | Creativity and problem-solving |
| Activities line up with objectives | A support system that improves harmony |
Organisational culture
Organisational culture is the set of values, beliefs, attitudes, systems and unwritten rules that shape how people behave in an organisation. It is how staff, customers, suppliers and other stakeholders experience the firm. It is different from national culture. It is made by consistent, genuine behaviour, not by press releases or policy documents.
Hofstede described it as the collective programming of the mind that separates one organisation’s members from another’s.
Culture is influenced by the firm’s history, products, market, technology, strategy, people, management style and national culture. It shows in the vision, values, norms, symbols, language and habits of the organisation, and in everyday things such as dress code, office layout, style of meetings, communication channels and perks.
Roles of culture
- Shaping behaviour and expectations. It tells people how to act, decide and approach work.
- Influencing decisions, whether by consensus, top-down order or collaboration.
- Building teamwork and cooperation.
- Raising engagement and retention by making work satisfying and supportive.
- Encouraging innovation and adaptability.
- Giving staff a sense of identity and purpose, and reducing stress.
Why culture matters
A positive culture promotes teamwork, lifts morale and attracts good people. It shapes the company’s identity, so that staff who feel they belong align with its goals and stay longer. It also affects how customers and other stakeholders see the firm and supports innovation and problem-solving. Investing in culture strengthens relationships, improves retention and builds long-term success.
Individual behaviour
Individual behaviour is how a person acts, thinks and reacts to inner and outer pressures at work. It covers traits, values, beliefs, feelings and motives. It affects how people get on, how teams work and the culture. Seven factors shape it.
| Factor | Meaning | Why it matters to managers |
|---|---|---|
| Personality | The lasting traits that shape how someone thinks, feels and acts. The Big Five are openness, conscientiousness, extroversion, agreeableness and neuroticism | Knowing it helps a manager adjust how to motivate each person |
| Values | Principles a person holds dear | They guide decisions and how people deal with others |
| Attitudes | Feelings and judgements about people, things or events | Positive attitudes improve satisfaction and performance. Negative ones harm output. Managers influence them through communication and recognition |
| Motivation | The drive that decides how hard people work and how they cope with difficulty | Theories such as Maslow’s and Herzberg’s help managers raise commitment |
| Perception | How people interpret their surroundings | People can read the same event differently, so clear communication prevents confusion |
| Emotions | Feelings that shape decisions and relationships | Emotional intelligence builds teamwork and positive workplaces |
| Social influences | Family, friends and the culture of the organisation | Workplace norms shape how people act together |
Group behaviour
Group behaviour covers the interactions and decision-making through which a group pursues shared goals. People often act differently in a group than alone, because of social influence and the wish to be accepted. Understanding it helps managers improve teamwork and communication.
| Type of group | Meaning |
|---|---|
| Formal group | Set up by the organisation for a defined purpose, such as a team, department or committee, with members chosen for skill |
| Informal group | Forms naturally from shared interests or friendship and supports communication and fellowship |
| Task group | Brought together for a particular job with a set timeline. It breaks up when the task ends |
| Interest group | Formed by people with a shared concern at work, such as safety or professional progress, and can influence policy |
| Virtual group | Works mainly through digital platforms. It offers flexibility but may struggle with communication, trust and cohesion |
| Multi-disciplinary group | Members from different departments or fields, brought together to tackle complex problems with varied skills |
What shapes how a group behaves
- Group norms. The unwritten rules about proper behaviour. Shared norms unify a group, while conflicting norms cause confusion and division.
- Roles and accountabilities. Clear roles build responsibility and teamwork. Unclear roles cause overlap and inefficiency.
- Leadership approach. Whether controlling, democratic or free, the style strongly affects cohesion, motivation and decisions. Good leaders adapt their style to the group.
- Communication patterns within the group.
- Cohesion and group identity. The strength of the bond that members feel. Strong cohesion improves cooperation.
Worked example: reading a workplace
Scenario. A bank branch has detailed written procedures and a clear chain of command. Yet staff say the real decisions are made over lunch by a group of long-serving officers, whom new recruits are reluctant to challenge. Morale is good, but a new system is being quietly ignored. Advise the manager.
- Identify the two structures. The procedures and chain of command are the formal organisation. The lunch group is an informal organisation with real influence.
- Weigh the effect. The informal group lifts morale and communication, but it is also resisting the new system, which hurts the formal goals.
- Look at behaviour. The group’s norms, its leaders’ attitudes and recruits’ wish for acceptance explain why the system is ignored.
- Recommend. Work with the informal group, not against it. Involve its respected members in introducing the system, explain the reasons, and set clear roles so that formal and informal lines of influence pull the same way.
Culture and behaviour in more detail
How culture is created, shown and changed
Culture is formed by the founders’ values, the organisation’s history and experience, the kind of business, the people hired and what leaders reward or punish. It is shown in visible things, such as dress, office layout and meeting style, and in less visible things, such as stories people tell, what is tolerated, how decisions are made and how people speak to each other.
It is changed slowly: leaders must act consistently on the values they state, change what is rewarded, tell new stories, and hire and promote people who fit the new culture. A mission statement alone changes nothing if daily behaviour contradicts it.
Strong and weak cultures, and fit with strategy
A strong culture is widely shared and deeply held. It aligns people and speeds decisions, but it can also block necessary change and make newcomers feel excluded. A weak culture gives more freedom but less coordination. Culture supports performance when it fits the strategy: an innovative firm needs a culture that tolerates risk, while a safety-critical firm needs one that values procedure.
Using the informal organisation
Managers cannot abolish informal groups and should not try. They can use them: identify informal leaders and involve them in change, listen to the grapevine to learn how staff feel, correct rumours quickly with clear communication, and build task teams that use friendships. Ignoring informal groups risks silent resistance, as in the bank branch example.
Applying the factors of individual behaviour
| Factor | Applied example |
|---|---|
| Personality | A conscientious accountant suits detailed reconciliation, an extrovert suits client relations |
| Values | An honest person will resist pressure to falsify records |
| Attitudes | A staff member who feels undervalued may lower effort and spread negativity |
| Motivation | Offering a team a challenge and recognition may motivate more than a small pay rise |
| Perception | Two employees read the same email differently, one as helpful and one as criticism |
| Emotions | A manager who stays calm in a crisis steadies the team |
| Social influences | New recruits copy the habits of the group they join |
Group cohesion and what builds it
Cohesion is the strength of the bond that holds a group together. It tends to be higher in smaller groups, where members share a common aim or background, when the group is successful, when there is a sense of shared identity or outside pressure, and when members communicate frequently.
High cohesion improves cooperation and morale, but if the group’s norms are against the organisation’s aims, strong cohesion can work against it.
Exam focus: formal and informal organisation, and the roles of culture
Formal and informal organisation
| Basis | Formal organisation | Informal organisation |
|---|---|---|
| Definition | Official structure set up by management | Natural structure formed through relationships |
| Purpose | Achieving organisational goals | Meeting employees’ social and emotional needs |
| Formation | Deliberate and planned | Spontaneous and unplanned |
| Hierarchy | Clear and well defined | None defined |
| Communication | Formal channels such as emails and reports | Casual conversation |
| Rules | Strict rules and procedures | No strict rules |
| Accountability | Staff answer to superiors | No official accountability |
| Flexibility | Rigid and less adaptable | Highly flexible |
| Decisions | Made by management | Emerge through group consensus |
| Longevity | Lasts as long as the organisation | May dissolve as relationships change |
| Examples | Corporate hierarchies, government offices | Lunch groups, friendships |
- Characteristics of a formal organisation: role specialisation, accountability and a focus on set objectives, with a clear chain of command. Advantages: staff know their jobs, accountability, consistency through standard procedures, and goal alignment.
- Characteristics of an informal organisation: it forms naturally, is flexible, communicates freely outside the hierarchy, and influences decisions and culture. Advantages: teamwork and collaboration, better morale and belonging, innovation, and mutual support.
Organisational culture
Organisational culture is the set of values, beliefs, attitudes, systems and rules that shape how people behave in an organisation. Hofstede described it as the collective programming of the mind that distinguishes the members of one organisation from another. It is influenced by history, products, market, technology, strategy, employees, management style and national culture. Visible elements include dress code, office layout, meeting styles, communication channels and employee perks and benefits.
Roles of organisational culture
- Shaping behaviour and expectations.
- Influencing decision-making, whether by consensus, directive or collaboration.
- Fostering teamwork and collaboration.
- Enhancing employee engagement and retention.
- Driving innovation and adaptability.
- Improving communication and knowledge sharing.
- Influencing leadership style.
- Attracting and retaining talent.
- Affecting employee performance by creating a positive environment and reducing stress.
- Building a sense of identity and purpose.
Common mistakes in the exam
- Treating the informal organisation as harmful. It also supports morale and innovation.
- Confusing organisational culture with national culture, or with a written policy.
- Giving a list of factors with no explanation of how each affects behaviour.
- Mixing formal groups with informal ones, or task groups with interest groups.
- Ignoring the effect of group norms on an individual’s behaviour.
- Forgetting that culture is shown in daily behaviour, not only in stated values.
Quick revision
- Formal: planned, rules, hierarchy, accountability. Informal: natural, relationships, flexible, supports morale and innovation.
- Culture: shared values, beliefs and habits that shape behaviour. It differs from national culture.
- Seven factors of individual behaviour: personality, values, attitudes, motivation, perception, emotions, social influences.
- Six types of group: formal, informal, task, interest, virtual, multi-disciplinary.
- Group behaviour is shaped by norms, roles, leadership, communication and cohesion.
Practice questions
These are original questions written in the style of the ICAN exam. Try each one before you open the answer.
Section A style: multiple choice
Question 1. An informal organisation is one that:
- Is set up by management with strict rules
- Grows naturally from relationships and shared interests
- Has a clear chain of command
- Is accountable to superiors
Show the answer
B. The others describe the formal organisation.
Question 2. Which of the following is a characteristic of a formal organisation?
- Free-flowing communication with no hierarchy
- A clearly defined chain of command
- No official accountability
- A purpose of meeting social needs
Show the answer
B. The others describe the informal organisation.
Question 3. Organisational culture is best described as:
- The national culture of the country
- The shared values, beliefs and habits that shape behaviour in the organisation
- The written policy manual
- The organisation chart
Show the answer
B. It differs from national culture and is shown in daily behaviour.
Question 4. A group of staff from several departments brought together to solve a complex problem is a:
- Task group
- Interest group
- Multi-disciplinary group
- Virtual group
Show the answer
C. A multi-disciplinary group draws on varied skills from different departments.
Question 5. The unwritten rules that guide members’ behaviour in a group are called:
- Group norms
- Job descriptions
- Policies
- Procedures
Show the answer
A.
Question 6. Which of the following is one of the Big Five personality dimensions?
- Conscientiousness
- Hygiene
- Expectancy
- Valence
Show the answer
A. The others come from motivation theories.
Question 7. A group of staff who meet at lunch and share news and advice is an example of:
- A formal group
- An informal group
- A task group
- A virtual group
Show the answer
B. It arose naturally from relationships.
Question 8. Culture is most reliably shown by:
- The mission statement
- What leaders consistently do and reward
- The office colour
- The number of staff
Show the answer
B. Culture is created by consistent behaviour.
Question 9. Which is likely to increase group cohesion?
- A very large group
- Success and a shared aim
- No communication
- Constant change of members
Show the answer
B. Shared aims and success bind groups.
Question 10. An organisation with a safety-critical business needs a culture that values:
- Risk-taking above all
- Procedure and care
- No rules
- Speed only
Show the answer
B. Culture should fit the strategy.
Section B style: written questions
Question 11 (10 marks). Distinguish between a formal and an informal organisation on five bases.
Show the marking guide
Award 2 marks for each basis, with both sides stated. Suitable bases: origin, purpose, hierarchy, communication, rules, accountability, flexibility and life span.
Question 12 (20 marks).
(a) Explain what is meant by organisational culture and state four roles it plays. (8 marks)
(b) Explain four factors that influence individual behaviour at work. (8 marks)
(c) Name and describe two types of group found in organisations. (4 marks)
Show the marking guide
(a) 8 marks. Meaning (3): the shared values, beliefs and habits that shape behaviour. Four roles, 1 mark each with a brief explanation: shaping behaviour, influencing decisions, fostering teamwork, raising engagement and retention, encouraging innovation, giving identity.
(b) 8 marks, 2 each. Any four of: personality, values, attitudes, motivation, perception, emotions, social influences.
(c) 4 marks, 2 each. Any two of: formal, informal, task, interest, virtual, multi-disciplinary groups.
A further written question
Question 13 (10 marks). Explain how a manager can influence the culture of an organisation.
Model answers
Show the model answer to Question 11
The formal and informal organisation differ in five main ways. Origin: a formal organisation is planned and set up by management, an informal one forms naturally from relationships. Purpose: formal exists to reach organisational goals, informal meets social and emotional needs. Hierarchy: formal has a clear hierarchy, informal has none. Communication: formal uses official channels such as reports and email, informal uses casual conversation.
Rules and accountability: formal has strict rules and accountability to superiors, informal has no fixed rules or official accountability. Other differences are flexibility, decision-making and life span.
Show the model answer to Question 12
(a) Culture and its roles. Organisational culture is the set of shared values, beliefs, attitudes and unwritten rules that shape how people behave in the organisation. Four roles: it shapes behaviour and expectations; it influences how decisions are made; it fosters teamwork and cooperation; and it raises engagement and retention. It also encourages innovation and gives staff a sense of identity.
(b) Factors influencing individual behaviour. Personality: the lasting traits that shape how a person thinks and acts. Values: principles that guide decisions. Attitudes: feelings and judgements about people, things and events, which affect effort. Motivation: the drive that decides how hard people work. Others are perception, emotions and social influences.
(c) Types of group. A formal group is set up by the organisation for a purpose, such as a department or committee. A task group is brought together for a particular job with a set timeline and breaks up when it is done. Others are informal, interest, virtual and multi-disciplinary groups.
Show the model answer to Question 13
A manager influences culture mainly through consistent behaviour: staff copy what leaders do, not what they say. He can state clear values and make decisions that match them. He can change what is rewarded and punished, so that behaviour he wants is recognised and behaviour he does not want is not tolerated. He can hire, promote and train people who share the desired values.
He can communicate openly, telling stories of good practice and listening to staff. And he can shape the visible features such as meeting style, office layout and communication channels. Culture changes slowly, so consistency over time matters most.
Pathfinder on organisational culture and behaviour
These are the ICAN Pathfinder questions that test this topic. ICAN owns the questions and the suggested solutions, so we point you to them and do not copy them. Open your Pathfinder, attempt each question under exam conditions, then check your answer against the notes above.
From the earlier Business, Management and Finance paper. Part (a) asks you to define group cohesion and explain factors that affect it. Revise the group behaviour section.
Revise first: Exam focus: formal and informal organisation, and the roles of culture
From the earlier Business, Management and Finance paper. Asks how a manager can keep a culture of open communication to settle differences. Revise culture and group behaviour, and the communication topic.
Revise first: Exam focus: formal and informal organisation, and the roles of culture
Multiple-choice questions can test formal versus informal organisation, culture and types of group. Check Section A of every diet you practise for items on these points.
Revise first: Formal and informal organisation
Source: ICAN Pathfinder, Business Environment. Diets covered: May Diet, 2021 to May Diet, 2026. November Diet, 2024 is not yet mapped.
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