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"Best of Breed" versus an integrated software solution, a BCM analysis

From the perspective of the business there is much to be said for a "Best of Breed"* application strategy where the subject matter expert* in the company searches for the best software solution to meet their specific work process. For example, a sales manager looks for a software package to easily manage leads, the controller has a preference for another software solution to quickly do a consolidation across various business units. The production manager knows from his previous job a quick and easy package to perform a cost calculation. The call centre manager wishes a time registration system for its group of employees. The generation Y thinks it is perfectly normal to find the best app's on the internet (shadow IT). Detrimental for this "Best of Breed" strategy is that there is no or little emphasis on cooperation and/or exchange of information between applications, and therefore the departments.

From a Business Continuity perspective the fall-over capability of all these individual applications is good, because the state of each of the separate systems is clearly defined at any time.
A problem with the "Best of Breed" strategy is that there are multiple systems containing the same basic information, such as customers and items or services. Differences in data between the systems and also between the different departments can quickly occur. For the data one should pay attention to:
  • Completeness. Is all the necessary information of a product or service entered in to the other systems?
  • Correctness. Is the data entered or changed correctly? Were data changes for other systems also announced to the correct users/administrators? When entering the same data in various systems, processing and interpretation of the data may introduce differences.
    For example: the accuracy of transfer pricing and the logistical dimensions of products. The value 0 for the length property of a product is not an insurmountable problem for the accounting department, however a wrong value in the price calculation of a sales application sure is a problem. In addition to incorrect or obsolete values in systems, it is noticed that when applications require input in certain fields, people start filling in random data or strings as "does not apply" or "-" because that information is not available to the appropriate officer or not directly relevant to the operation. Reports from the various systems may thus lead to different interpretations.
  • Validity. Is the data is still valid? We want to prevent the risk that a customer is blocked in the debtor's ledger system because of amounts due and the sales department, using another system, places an order and at the customer's request ships it very quickly.

Solutions to let "Best of Breed" systems cooperate.


To solve the before mentioned problems, colleagues, often reactive, compare data using phone, chat or e-mail. Checking the correct data status is not professional, disruptive for the work of the queried colleague or disrupts the process during their absence.

Lists / Downloads

If the company or organization has handy application managers, manual exports and imports will appear soon. Next work procedures will stipulate that daily lists should be mailed and or Excel / CSV files from a system should be stored on a file server*. Importing new information from one system to another system, can reduce input errors. This procedure may perform well for a long time until someone makes a non-culpable costly mistake or data needs to be shared every few minutes.


Organisations with scripters or programmers will soon have planned data exchanges (interfaces). This way the organisation will grow to a "plastered pseudo integrated solution" whereby during the day several planned interfaces run. Because changes in data are exchanged between several systems, the status of the data, at any time, in various systems is not unambiguous. Whenever the same data is changed simultaneous in various systems, the outcome can depend on the sequence of the interfaces. From the BCM point of view the "Last known good"* moment for all the systems is hard to determine and at the time of a calamity or disaster the employees have to search for the moment all the systems have completed all the changes correctly. One system that partly or completely fails can block the data exchange so other systems will not get updated.
The pictures below show that the interconnectivity and complexity of communicating systems grows very fast with each additional communicating system. .
Graph Rapidly increasing complexity with additional communicating servers.
Graph Rapidly increasing complexity with additional communicating servers.

To get these complex structures better manageable, you can implement an extra communication-bus-system* that manages all the communication with the other systems. Although this reduces the number of interfaces, the "last known good" moment is not always clear.
Graph Rapidly increasing complexity with additional communicating servers bus system.
Graph Rapidly increasing complexity with additional communicating server's bus system.

Integrated system

Because an integrated system is based on one set of data with multiple (optional) modules running on the data, there is no need for interfaces between the modules to the retain data integrity. By functional correct configuration of the modules, everyone will have access to (only) the data they need and it only needs to be correctly entered once. Because the application runs on one data set, all changes on for example items, customers and invoices are (provided duly authorised) immediately visible to all employees. This is called a single "System of Truth". When entries have been accepted by the system, the data state is stable and there is no need for communication within the system. This centralised processing simplifies the determination of the "last known good" moment.
Integrated systems contain a lot of functionality but the application modules can be less extensive than the features provided in the "Best of Breed" applications. They might not be such a good match with the organisational structure and work processes in the company. Subject matter experts might require adjustments (customisation) to ensure that the functionality better matches with the products they knew. This customization can, in the long run, hinder upgrades with the standard software.


The "Best of breed" strategy can be a solution for every company if one takes duly into account the limitations, risks and disaster recovery problems. An integrated system could be preferable from the point of view of Business Continuity and data integrity.


"Best of Breed":
A software application that is selected specifically to best support one function or task within the company.
Communication/bus system:
A server system that processes the communication and data transformation between several other server systems using scripts and parametrisation. The data transformation prepares data for import in a target system. Some products are: IBM WebSphere ESB and Microsoft BizTalk Server.
Subject matter expert:
An employee with a lot of knowledge of business processes within the organisation, functioning as liaison for the ICT-department or application-managers. The subject matter expert participates in change and test procedures.
File server:
A computer system managing the storage and security of files for multiple users.
Last known good moment:
This is the moment in time that all the server systems are in a data state whereby all the changes are processed in all the systems and no data updates are waiting for an interface moment.

In some of the points, products are named only as an example. Johan is not affiliated with the suppliers of these products and your supplier or your experts may offer similar appropriate solutions.
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