The system chosen for this application is the computerised system. This computerised system works on software. As we have seen previously there are different softwares that can be used. Here we will see which is the best.

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The system chosen for this application is the computerised system. This computerised system works on software. As we have seen previously there are different softwares that can be used. Here we will see which is the best.

Software

Software is something that can be ‘run’ on the computer to allow the computer carry out some specific tasks. The software is a program that is created so that the users can get the most out of the computer. The softwares that are chosen are from among the most famous and most commonly used ones. Thus it is according to the requirements that the system needs to be chosen. The software also should have many properties which helps the system and also it should allow the user carry out the specific tasks easily.

The documentation of the software means the papers or instructions that come with it. They have different problems that are tackled for new users. This combined with on screen help messages and computer tutorials helps the user and benefits him even if he does not know how the particular software is run. Only two types of softwares have documentation. One is the application specific software and the other general purpose software. The custom designed can also have documentation but it is not practical, as we will see later on.

  1. Application Specific. This refers to the software that has been designed specifically for a certain purpose. The packages that usually include only this software or other software that is linked with it so data can be transferred. This means it is part of integrated software.  They usually have documentation and help messages so the user finds it easy to use the software. In this system for example the need is for a package that can combine letter writing, stock keeping and finances. This way this software is very good to use.
  2. General Purpose. These packages or softwares can be used in a variety of general situations such as name entry, date entry, etc. This is a common aspect and is dealt with by this software. This way the software that is used is usually used in systems that are only partially computerised because only parts of the menus are used for the actual purpose. It does have documentation and also comes bundled with other general purpose applications. However it cannot exchange data with application specific because it does have all the features of that particular package. They are used by users that are using computers for the first time and if the system is not too complex.
  3. Custom designed. This software are designed by analysts and engineers. This takes time as the system analysts have to prepare all the programs on flowcharts and then have to actually design the system. There is no specific documentation because the designers usually explain to the user by actually showing how the system works so the software does not require documentation. Even so it is not practical to type out so many pages of documentation because it takes time and may not cover all aspects of the system and errors of the system. If the business asks for an addition or an update only the designer himself can do it.

Now we will select the software packages that can be used for this and which ones fit into one of these categories.

We will only compare with the application specific software and the general purpose softwares because the custom designed already have bee ruled out. This is because:

  • Custom designed software has no documentation so the user depends on only verbal explanation
  • The software does not have updates installed easily. This again has to be programmed.
  • The software takes a long time to develop.
  • The software is costly because it is original and it is being used for only one purpose.
  • Errors take a long time to understand and also take time to correct because the software has to come into practice if the mistakes are to be known.
  • Most Custom Designed software is based on the principles of Application Specific and General Purpose Applications.

As we can see the main problem with the General Purpose applications is that they do not have enough features to match those provided by the Application Specific softwares. This makes the obvious choice the Application Specific software types. Other important features that are included are:

  1. The data that is stored is undivided and can be viewed altogether so there is not time is switching back and forth between records.
  2. It is tried and tested by many international companies for the same needs and it has been successful.
  3. It is more reliable and the updates are also helpful, unlike the General Purpose softwares.

Now that the software type has been chosen, we can now list the softwares that come under this category and the most suitable one for this application.

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The softwares that will be compared here are

  1. Microsoft Excel
  2. Sage
  3. Lotus 1-2-3

One other major difference is that Sage has different softwares for different company sizes and so if the business grows then new software has to be taken and then all the data has to be updated. In Lotus there is no special feature for companies while Excel there is are features and functions that can apply to different companies because it has mainly been created with the businesses in mind. Lotus also works best when combines with Excel so ...

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