Great Lakes Data Systems has been named an approved provider for billing, subscriber management and provisioning by the National Cable Television Cooperative.GLDS has also been invited to participate in the upcoming NCTC Winter Education Conference, being held in Austin, TX, Feb. 20-21. GLDS provides Windows and Linux billing and subscriber management solutions for operators ranging from 2,500 to more than 250,000 subscribers via its WinCable platform and automated provisioning for video, voice and data services with its SuperController solution.GLDS plans to demonstrate the company's new workforce management platform WinForce tech at the upcoming NCTC Winter Education Conference. It's designed to give small operators an affordable way to move customer management data out to the field, reduce field work calls and speed customer service.