1.1 Systems in Organisations

Reasons for change and consideration

An organisation does not commission a new computer system to replace an existing system very lightly. There are serious financial, and operational considerations. To give advice, you will need to understand the context, which means looking at the background situation, the environment and all the dissatisfactions management and staff have with the current system.

Typical reasons for a new system.

1. An old legacy system may now only partially functional due to old technology which is not repairable or is incompatible with new tech. It may be based on a now rarely used programming language and it is hard to find programmers to maintain or extend the system. The documentation may be missing, making it hard also to maintain and extend. Database records have multiple redundancies and duplication resulting in time consuming inconsistencies.

2. A merger of businesses usually requires a new system. This is tricky and throws up issues such as hardware compatibilty issues, file type compatibilty and data migration. Employee efficiency may drop due to employee redundancy or a struggle to learn new systems.

Any new system though has to consider:

1. Economic issues - both in financial (design, hardware, software, training costs) and time (staff training, development time) terms.

2. Technical limitations - compatibilty and availability

3. Data issues - data security and migration issues

4. Legal issues - Data protection issues

5. Social, mental and cultural issues - some users hate change

6. Environmental issues - may affect hardware


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2. Computer Organisation (6hrs)

I have made topic 2 the first one to learn. I think it will help your credibility with friends and family if you know how computers work first.


1. System
Fundamentals (20 hrs)

Here we learn how new computer systems start with dissatisfaction with how things are. We learn the principles of succesfully designing and implementing a new system into a business context.


3. Networks (9 hrs)

Networks involve hardware and software that need to keep to a set of rules to give us all their amazing benefits of shared resources and information


4. Computational thinking (45 hrs)

Here is where we learn how to create algorithms and programs to solve problems.



Typical examination questions are usually scenario based

Read that scenario carefully and taylor your answers accordingly.

In a new MIS system for example you would focus on staff training and availability of work stations to access the MIS.

Typical exam questions: