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¶ … Building a Database for Use in Scheduling Process
The scheduling of various activities can at the moment be with the help of computer programs that implement the methodology of the critical-path method (CPM) (Choo et al.,2008). The requirements for building a database for use in scheduling process are numerous. For instance, each scheduler must have a separate database for storing information persistently. The server administrator and the application scheduler have the choice as well as location of database to be used. The performance of a scheduler is largely affected by the performance of the chosen database. If more tasks per second are needed then the scheduler daemons can be run on larger and faster systems.
According to Johnson (2004), the requirements for building a database for use in scheduling process include ensuring the following;
Availability
The scheduler database and service must be configured have a high level of availability by either creating the necessary scheduler resources in duplicates as well as by creating the resources in clusters.
Recovery as well as delays
The scheduler must be designed in order to take care of overloads caused by insufficient resources.
Scalability
The database to be used in handling the scheduler events must be scalable....
This enhances the availability of the scheduler program.
Security
The process of designing the scheduler database must take into account issues of task security as well as the administration security. The task security specifies who the tasks runs as while the administrator security dictates the people who can modify the tasks.
Performance
In regard to performance, the scheduler database and program must be optimized to effectively load as well as run tasks with very minimal level of database interaction.
The advantages and disadvantages of moving the schedule to a database
Advantages
The use of a database-based scheduler allows for scheduling of a project in segments and thereby making very large projects very manageable.
Allows for high level of interchangeability
One of the main benefits of project scheduling tools is that it allows for the easy management of the notifications as well as organizations for the tasks. This includes all elements of the project such as project phases and deadlines. Changes can also be made within the project scope with this tool.
Provides project tracking capabilities
Whenever…
References
Blaha, M (2005). Referential Integrity Is Important For Databases. Available online at http://www.odbms.org/download/007.02%20Blaha%20Referential%20Integrity%20Is%20Important%20For%20Databases%20November%202005.PDF
Choo, HJ and Tommelein, ID (2008). Requirements abd barriers to adoption of last planner computer tools. Available online at http://cic.vtt.fi/lean/singapore/chooandtommeleinfinal.pdf
Johnson, C (2004). IBM WebSphere Developer Technical Journal: WebSphere Enterprise Scheduler planning and administration guide. Available online at http://www.ibm.com/developerworks/websphere/techjournal/0404_johnson/0404_johnson.html
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