The worldwide service assurance market is forecast to grow from USD2.93 billion in 2013 to USD4.13 billion in 2018, at a CAGR of 7.2%. LTE will continue to be a major driver for service assurance investments during the forecast period. This report provides a 5-year revenue forecast for five application segments, four service sectors and four regions.LTE roll-out and data service take-up in emerging markets will drive long-term growth in the service assurance systems market -The service assurance market will grow from USD2.93 billion in 2013 to USD4.13 billion in 2018, at a CAGR of 7.2%. -LTE will continue to be a major driver for service assurance investments during the forecast period. Growth in the first 3 years will be relatively slow because LTE-related spending in mature markets such as North America (NA) will decline. -Investments will increase in emerging markets as operators accelerate LTE deployments, which will drive higher growth during the latter part of the forecast period. Countries in emerging Asia'Pacific (APAC) and parts of the Middle East and Africa (MEA) have planned LTE roll-outs in this period. -Cost and bottom-line pressures will drive investments in network operations centre (NOC) consolidation initiatives and system rationalisation projects. Service operation centre (SOC) implementation, big data and real-time network analytics will be strong drivers, for improving customer experience, increasing customer loyalty and reducing churn. -In the long term, a number of operators will deploy voice over LTE (VoLTE). Given the complexity of VoLTE, operators will need advanced monitoring systems to assure the service. -As operators evolve their networks to introduce virtualised network functions, they will need new assurance and orchestration systems that can manage both legacy and virtualised infrastructure.Drivers -LTE network roll-out in emerging markets, including Emerging APAC and MEA. -Increased consumption of data services in LATAM and Emerging APAC, because of increasing smartphone penetration. -Service assurance consolidation to drive customer experience improvements, and transformation from network-centric to service- and customer-centric operations. -Use of real-time network analytics to better understand customer behaviour. -Efficient network planning using near-real-time network performance data. -New services such as VoLTE and Wi-Fi. -New cloud-based services combining compute, storage and network. -Network virtualisation initiatives such as NFV and SDN. -Increasing traction in the M2M domain.Inhibitors -Organisational barriers to sharing network data between departments. -Privacy concerns. -Regulatory issues related to net neutrality. -Inadequate support from senior management for transformation projects. -Poor understanding of CEM principles. -Difficulty in justifying the business case for CEM. -Lack of OSS standards for virtualised networks will inhibit investment in assurance systems for NFV and SDN.