Collaborative networks (CN) consist of autonomous and heterogeneous partners, and each defines its own objectives and formulates its own strategies, which are selected and activated to achieve these objectives. The heterogeneity that characterises network partners could lead to contradictions appearing among the strategies formulated in each CN enterprise.Consequently, the strategies formulated in one enterprise could negatively influence the achievement of the objectives defined in other enterprises of the same network. These contradictions lead to strategies misalignments, which worsens the network performance. In order to deal with these misalignments, a DSS is proposed to support the process of selecting the strategies among all those formulated, with the aim of achieving higher alignment levels.The proposed DSS considers the impacts that each strategy formulated in each enterprise has on the performance of the objectives defined by each network partner. This allows enterprises to select a set of aligned strategies. The selection of proper strategies to be activated in each enterprise strongly influences the CN's performance level, and higher levels of network adaptability, agility and competitiveness are achieved. The proposed DSS is validated under real conditions in a food industry network. The DSS is evaluated by emulating real collaborative conditions and is compared with the equivalent non-collaborative decision making perspective used for selecting strategies. The results demonstrate that the collaborative approach outperforms the performance level of the non-collaborative one and is more effective for handling the robustness and the long-term operation of the CN.Enterprises are continuously dealing with new decisions, and, when carrying out the decision-making process, they have to reach a decision after considering a set of potential options. The decision-making process increases in complexity when more than one actor is involved in the decision; this occurs in collaborative networks (CN). Camarinha-Matos and Afsarmanesh [1] define CN as a network that consists of a variety of autonomous, geographically distributed and heterogeneous entities that collaborate to better achieve common or compatible goals, and to jointly generate value. In CN, each enterprise defines its own objectives and formulates its own strategies; therefore, distinct interests are involved, which may lead to conflictive situations that derive from disagreements in the selection of strategies.The processes carried out by the enterprises that belong to a CN are characterised by being collaborative; and have been largely studied with the aim of dealing with the associated complexity in the CN context. Works that are worth mentioning and propose decision-making systems to address the associated complexity, which occurs in the CN context, include [2] [3][4]. The work carried out by [5] consolidates the wide variety of knowledge available in the collaborative domain, and proposes a comprehensive analysis of the most important collaborat...