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diff --git a/src/database/database_structure.hpp b/src/database/database_structure.hpp
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+
+// =================================================================================================
+// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
+// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
+// width of 100 characters per line.
+//
+// Author(s):
+//   Cedric Nugteren <www.cedricnugteren.nl>
+//
+// This file describes the database storage structures.
+//
+// =================================================================================================
+
+#ifndef CLBLAST_DATABASE_DATABASE_STRUCTURE_H_
+#define CLBLAST_DATABASE_DATABASE_STRUCTURE_H_
+
+#include <string>
+#include <array>
+#include <vector>
+#include <unordered_map>
+
+namespace clblast {
+// A special namespace to hold all the global constant variables (including the database entries)
+namespace database {
+
+// =================================================================================================
+
+// Type alias for the database storage (arrays for fast compilation/efficiency)
+using Name = std::array<char, 51>; // name as stored in database (50 chars + string terminator)
+using Params = std::array<size_t, 14>; // parameters as stored in database
+
+// Type alias after extracting from the database (map for improved code readability)
+using Parameters = std::unordered_map<std::string, size_t>; // parameters after reading from DB
+
+// The OpenCL device types
+const std::string kDeviceTypeCPU = "CPU";
+const std::string kDeviceTypeGPU = "GPU";
+const std::string kDeviceTypeAccelerator = "accelerator";
+const std::string kDeviceTypeAll = "default";
+const Name kDeviceNameDefault = {"default                                           "};
+
+struct DatabaseDevice {
+  const Name name;
+  const Params parameters; // parameter values
+};
+struct DatabaseArchitecture {
+  const std::string name;
+  const std::vector<DatabaseDevice> devices;
+};
+struct DatabaseVendor {
+  const std::string type;
+  const std::string name;
+  const std::vector<DatabaseArchitecture> architectures;
+};
+struct DatabaseEntry {
+  const std::string kernel;
+  const Precision precision;
+  const std::vector<std::string> parameter_names;
+  const std::vector<DatabaseVendor> vendors;
+};
+
+// =================================================================================================
+} // namespace database
+} // namespace clblast
+
+// CLBLAST_DATABASE_DATABASE_STRUCTURE_H_
+#endif