Think Systems, a decision-support software developer based inParsippany,N.J., has introduced four applications designed for use by large consumer-goods companies. FYI Planner is a forecasting/planning system designed to help companies forecast and plan their sales and inventory cycles. FYI Sales is a query, analysis and reporting system that gives sales-people immediate access to the up-to-date sales information. FYI Finance is a general purpose analysis tool used to analyze, plan and monitor the financial aspects of large corporations managing multiple products. FYI TradePromoter is an integrated software tool that allows companies to plan, allocate funds and monitor trade promotion spending. The first three applications already are available; FYI TradePromoter is expected to be released during the fourth quarter of 1994.