Big Bang
Once the management has decided to use the big bang method and supports the changes which are needed for this, the real changing process can start. This process exists of several steps: converting the system, releasing parts of the system and training the future users (Eason, 1988).
The activities in the process are explained in the table below, to state them clear. The concepts that are used to execute the activities are in capitals.
| Activity | Subactivity | Description |
| Prepare management (see Adoption) | Determine organizational changes | The process of determining the changes that will have to take place to make the big bang possible that results in a REPORT OF ORGANIZATIONAL CHANGES |
| Agree on organizational changes | To be able to introduce the big bang, there has to be agreement about the change-plan which results in an AGREEMENT CONTRACT. If there’s no agreement a new agreement meetings are necessary or the changes need to be determined different again and again, until an AGREEMENT CONTRACT is created. | |
| Convert system | Make planning for future users | Make the PLANNING for the people who will have to deal with the NEW SYSTEM, so they have an overview of the events that are going to happen (Eason, 1988) |
| Convert data from old system | Convert data from the old system so it can be used in the NEW SYSTEM (Koop, Rooimans and de Theye, 2003) | |
| Load data into new system | Load data the CONVERTED DATA into the NEW SYSTEM (Eason, 1988) | |
| Test data in new system | TEST DATA so it’ll be known whether if the data will be usable in the NEW SYSTEM (Eason, 1988) | |
| Execute offline trials | Execute TRIAL with the system and with the users of the system to check whether if the system will work correct (Eason, 1988) | |
| Check to verify validity | Checking validity so the system can be made ready to become released (Koop, Rooimans and de Theye, 2003) | |
| Release parts | Release converted database | Release DATABASE which is converted from the old DATABASE (Eason, 1988) |
| Release produced application | Release the APPLICATION which is produced for the staff (Eason, 1988) | |
| Release infrastructure | Release the new INFRASTRUCTURE (Eason, 1988) | |
| Prepare users | Maintain buffer of experienced staff | Create a BUFFER of staff who can take over the duties of the people who have to be trained in using the NEW SYSTEM, so the daily work can go on (Eason, 1988) |
| Train users | Train users in preparation for the big release of the system, to create a LIST OF TRAINED USERS |
Read more about this topic: Big Bang Adoption
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