Information technology professionals in separate roles within companies have different, although related and sometimes overlapping, responsibilities.

公司当中分处不同角色的信息技术专业人员具有不同的职责，虽然这些职责相关且有时有些重叠。

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Users and system orientation: an OLTP system is customer-oriented and is used for transaction and query processing by clerks, clients, and information technology professionals.

用户和系统的面向性：oltp是面向顾客的，用于办事员、客户、和信息技术专业人员的事务和查询处理。

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It emphasizes the critical role of an efficient communication with information technology professionals, business managers, end users, consultants and other external service providers.

课程强调与有效沟通相关的专业信息技术人员，商业经理，最终用户，顾问和其他外部服务供应商的角色评定。

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Baltimore, which is home to major research institutions and defense-related contractors, has particularly many job opportunities for health care and information technology professionals.

FORBES: Magazine Article

Elsewhere on the list, No. 7 Baltimore, which is home to major research institutions and defense-related contractors, has particularly many job opportunities for health care and information technology professionals.

FORBES: The Easiest and Hardest Cities for Finding a Job

Big-company basics, like collaboration and workflow software, can be a nightmare to install and maintain if they're not backed up by a big company's trained crew of information technology professionals.

FORBES: Magazine Article