How do you compare different information systems?

1 Types of Information Systems

Identifying the types and categories of information systems is an essential step in comparing them. Information systems can be classified based on scope, level, function, or architecture, such as Transaction Processing Systems (TPS), Management Information Systems (MIS), Decision Support Systems (DSS), Executive Information Systems (EIS), and Expert Systems (ES). TPS are designed for speed, reliability, and accuracy while handling large volumes of data. MIS are created to support planning, controlling, and evaluating activities with summaries, trends, and KPIs. DSS help managers and decision-makers analyze complex problems and explore alternative solutions. EIS provide strategic information and insights to senior executives with dashboards, graphics, and alerts. ES emulate the knowledge and reasoning of human experts in a specific domain with advice, diagnosis, or recommendations.

2 Criteria for Comparison

Once you have identified the types of information systems you want to compare, you need to define the criteria for comparison. These criteria are based on your objectives and expectations and are used to evaluate and contrast the information systems. Common criteria for comparison include functionality, performance, quality, and cost. Functionality refers to features and capabilities such as inputs, outputs, processes, controls, feedback, and integration. Performance looks at efficiency and effectiveness such as throughput, response time, availability, reliability, accuracy, and scalability. Quality examines excellence and satisfaction such as usability, user-friendliness, accessibility, security, privacy, and compliance. Cost looks at resources and expenses such as initial cost, operating cost, maintenance cost, and total cost of ownership (TCO).

3 Methods for Comparison

Once you have established the criteria for comparison, you need to select the methods for comparison. These are the techniques and tools used to collect, analyze, and present data and information about the information systems, based on your criteria. Common methods for comparing different information systems include benchmarking, SWOT analysis, cost-benefit analysis, and scorecard. For instance, benchmarking is used to measure and compare the performance and quality of the information system against a standard or best practice. SWOT analysis evaluates the strengths, weaknesses, opportunities, and threats of the information system internally and externally. Cost-benefit analysis estimates and compares the costs and benefits of the information system over its life cycle. Lastly, a scorecard assigns scores or ratings to the information system based on various criteria and weights to rank or rate it.

4 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?