What are internal sources of information?
Internal sources of information are the records, data and knowledge that a business generates or holds within its own operations. Examples include sales figures, financial statements, staff records and customer service logs. They are called “internal” because the organization already owns them and does not need to buy or collect them from outside.
Managers use internal sources to understand performance, plan budgets, spot problems and make decisions.
Common examples of internal sources
- Sales data: revenue by product, region, customer or period; order history; pricing and discounts.
- Financial data: profit and loss statements, balance sheets, cash flow, budgets and expense records.
- Human resources data: headcount, turnover, attendance, pay, training records and employee surveys.
- Marketing data: campaign results, website analytics for the company’s own site, email performance, customer lists.
- Operations data: production output, inventory levels, delivery times, quality and defect records.
- Customer service records: complaints, support tickets, returns and feedback.
- Staff knowledge: the experience of employees, especially salespeople and customer-facing teams.
- Internal documents: policies, meeting notes, reports and previous project reviews.
Internal sources of business ideas
Internal sources can also spark ideas for new products or improvements. Common ones are:
- Employees who notice customer problems or process inefficiencies
- Sales and support teams who hear repeated requests
- Research and development or product teams
- Patterns in sales or complaint data
- Suggestion schemes and internal brainstorming sessions
Information systems that hold internal data
Internal data usually lives in business software. The names and groupings of information systems vary by textbook, but common types include:
- Transaction processing systems, which record day-to-day activity such as sales
- Management information systems, which summarize data into regular reports
- Decision support systems, which help analyze options
- Customer relationship management (CRM) systems
- Enterprise resource planning (ERP) systems, which join up finance, inventory and other functions
- Human resource information systems
- Accounting and inventory software
Internal vs external sources
| Internal sources | External sources | |
|---|---|---|
| Where from | Inside the business | Outside the business |
| Examples | Sales records, budgets, staff reports | Government statistics, industry reports, competitor information, social media, customer surveys |
| Cost | Usually low, since already collected | May involve purchase or research effort |
| Best for | Understanding the business’s own performance | Understanding the market, competitors and trends |
Most decisions benefit from both. Internal data shows what has happened inside the business, while external data shows what is happening around it.
Strengths and limitations
Strengths
- Readily available and often inexpensive
- Specific to the business
- Usually detailed and up to date
Limitations
- It only reflects the business’s own history, so it says little about new markets or competitors.
- Records may be incomplete, inconsistent or stored in separate systems.
- Data quality depends on how carefully it was entered.
- Existing customers are visible, but people who never bought are not.
Using internal information well
- Start with the question you need to answer, then pick the relevant data.
- Check that the data is accurate and current.
- Bring together data held by different departments where possible.
- Compare against external information to get context.
- Protect sensitive data, particularly staff and customer records, in line with applicable privacy rules. Internal controls such as access limits help.
FAQ
What are the sources of information in business?
They are generally grouped as internal, such as sales and financial records, and external, such as market reports and government data.
What are some internal sources of business ideas?
Employees, customer-facing teams, product teams and patterns in internal data are common sources.
What are internal vs external sources?
Internal sources come from within the organization, while external sources come from outside it.
What are the types of information systems used in business?
Common types include transaction processing, management information, decision support, CRM and ERP systems, though lists differ between sources.