Figure 18-10 shows a logical diagram of the solution software components. The diagram covers the main components and their interactions with each other.  All but one of the components are part of the product suite. The custom plug-in  (denoted with the red line around the box) is where any custom UIs needed for  the solution are created and used. The product boxes would typically be described in this section, but for the  purposes of this book and chapter, it is skipped. Note:  For IBM Datacap, there are additional services named RuleRunner and  Fingerprint. These services are not called out here because for this use case  there is not enough demand to move them into separate components, but they  are being used. 582  Building IBM Enterprise Content Management Solutions From End to End Figure 18-10 Logical diagram Application Server IBM Content Navigator CPE Engine – Application Server Content Engine Proces Engine Datacap  Scan  Workstation IBM  Datacap Broswer IBM Watson Content Analytics IBM  Content Manager  OnDemand File System Database IBM Content Collector for eMail IBM Content Classification Application Server eMail Search &  Retrieval Designer & Workbench Application Server Application  Server Task &  Routing  Builder Case  Manager Case Manager  PlugIn Watson Content  Analytics PlugIn Custom  PlugIn