At least for server-based clients, their presence may be an indication of technology convergence between clients and server products in cloud space, a continuation of the trend that started when clients were used as presentation devices for traditional three-tier applications.

All the models depend on NAS or SAN storage for accessing operating system images or for operating system or application streaming and delivered through either a desktop or laptop PC or a thin client.

Following are some considerations for evaluating client virtualization solutions.

* Client Devices and Compute Models: Conversations around compute models often get intertwined with the device on which it will be deployed.  The analysis becomes easier if devices and models are treated separately.  For example, the business scenario may dictate server-based computing for a certain application, such as a patient information database.  However, this “thin client” model need not be deployed on a thin terminal.  A desktop or laptop PC may actually be a more appropriate device, depending on a user’s total application and mobility needs.  

* Mixed Compute Models: In most cases, IT will deploy a mix of computation models depending on needs for data security, performance and mobility.  Individual users may have a hybrid of models.  For example, a construction estimator in the field may use a cellular modem to access the centralized job scheduling tool via a terminal server session, but also have Microsoft Office locally installed for word processing and spreadsheet work.